Your mention version is not avail.
pcanywhere 12.6 is latest. You can contact for symantec sale team for purchase.
http://www.symantec.com/contact_sales.jsp
http://www.symantec.com/business/support/index?page=content&id=TECH106811
Check this
https://www-secure.symantec.com/connect/forums/unable-install-client-package-through-remote-push
Error: "Login to [computer] failed. Check the username and password and try again."
Article:TECH91715 | Created: 2009-01-08 | Updated: 2013-11...
Datbase will be same as current running if you can upgrade your SEPM.
in your case you need first install the same version which you last running and after that restore the DB using disaster recovery.
After that upgrade the SEPM